Your Twitter account could get suspended for one or more of these reasons
User Abuse: A large number of people block the profile or write in with spam complaints.
Aggressive following: Using programs out there that claim to get you 1000’s of follow in just days could get you suspended. Just remember quality is better then quantity.
Misuse of the reply feature: I haven’t heard of anyone getting suspended for this but it’s on the list of things not to do.
Updates consist of duplicate links and/or text: Sending out the same tweet over and over again can get you suspended. You will also lose all your followers doing this.
Stealing: Updates poached from others’ timelines, passed off as one’s own. Putting your own spin on a tweet will keep you safe.
Technical Abuse: Updates consist of links pointing to phishing sites, malware, or other harmful material.
Multiple Accounts: A large number of accounts is created in a short amount of time. You can have more then one account just don’t create several in a short time.
Spam: An account is identified as belonging to a spam cluster.